They have been skating __________.
#40389
A
for three hours
B
since three hours ago
C
three hours ago
D
since three hours
推荐题目
I don’t know if my uncle  _______ . If he _______ , I will be very happy .
#42535
A
comes; will come
B
will come; will come
C
comes; comes
D
will come; comes
Great changes ______ in the city and a lot of buildings ______.
#42171
A
have taken place, have been set up
B
have been taken place, have been set up
C
were taken place, were set up
D
have taken place, set up
---What’s on TV tonight?---There __________ a good progamme called Chinese Idol on Dragon TV.
#39328
A
is going to have
B
are going to be
C
is going to be
D
are going to have